Method put

output/java_guava/1.4.19/ImmutableMap.java:211–218

Associates key with value in the built map. Duplicate keys are not allowed, and will cause #build to fail.

(K key, V value)

     */

    @CanIgnoreReturnValue
    public Builder<K, V> put(K key, V value) {
      ensureCapacity(size + 1);
      ImmutableMapEntry<K, V> entry = entryOf(key, value);
      // don't inline this: we want to fail atomically if key or value is null
      entries[size++] = entry;
      return this;
    }

    /**
     * Adds the given {@code entry} to the map, making it immutable if